// JavaScript Document
function hideVat(){
  document.all.vat.style.display = "none";
  document.all.vat_label.style.display = "none";
}
function showVat(select) {
  var wert = select.options[select.options.selectedIndex].value;
  
  if(wert==3)
   {
    document.all.vat.style.display = "inline";
    document.all.vat_label.style.display = "inline";
    }
  else
    {
     document.all.vat.style.display = "none";
     document.all.vat_label.style.display = "none";
    }
}
var checked = false;
function select_all(){
	if(checked)
		checked = false;
	else	
		checked = true;
	for (var i=0;i<document.forms[0].elements.length;i++)
		document.forms[0].elements[i].checked = checked;
}